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画面の端で 光る言葉

小さな島に 歌が住んでる

Ririku's character: an anime girl with a black and red bob and a cybernetic neck, in coral and magenta.

Free for macOS · Open source

lyrics, livein your notch.

Ririku shows what's playing, with line-by-line synced lyrics, right under your MacBook's notch. Plus pages of widgets you arrange yourself.

Ririku — リリク

Ririku, from the Japanese リリク for “lyric”, turns the quiet strip around your notch into a tiny stage: the song you're playing, every line as it's sung, and the small tools you reach for all day.

01 — Features

the notch, in motion

Music in the compact island, and pages of widgets one hover away. These are the author's pages; yours are up to you.
Compact island
01

Compact island

Artwork, a spectrum and up to three lyric lines, right under the notch.

Music panel
02

Music panel

Hover or click to expand: track, seek bar, play, pause and skip.

System
03

System

Processor, memory and disk, with battery and the clock beside them.

Focus
04

Focus

Pomodoro, a countdown and a note, one tab away.

Calendar & Shortcuts
05

Calendar & Shortcuts

Your day and your Shortcuts on a page of your own.

Tray & AirDrop
06

Tray & AirDrop

Keep files at hand, and send them with AirDrop.

Plays along with

  • YouTube Music
  • YouTube
  • Spotify
  • Apple Music
  • LRCLIB
  • Chrome
  • Brave
  • Edge
  • Arc
  • Vivaldi
  • Opera

02 — Lyrics

every line,right on time.

Lyrics are found on LRCLIB by title, artist and duration, then cached on your Mac. Prefer the video's captions, pick another version, nudge the timing per song, or import your own .lrc file.

Japanese-friendly by design: when a file pairs Japanese with romaji, Ririku can show only the Japanese. On macOS 15, each line can be translated on your Mac, right under the active one.

ノッチの下で

Ririku Demo · YouTube Music

1:023:32

03 — Widgets

your notch, your pages.

Arrange pages of widgets in Setup → Layout, with a live preview. Each widget is small or wide, and a page can hold a whole tool. This is the layout Ririku starts with.

01

Home

02

System

03

Focus

04

Tools

05

Tray

20 widgets and tools

Everything runs on your Mac. Widgets that need a permission ask only when you add them.

  • 01

    Music

    Lyrics, seek, controls

  • 02

    System

    CPU, memory, disk

  • 03

    Network

    Upload and download speed

  • 04

    Battery

    Charge and power source

  • 05

    Clock

    Time and date

  • 06

    Pomodoro

    Focus and break cycles

  • 07

    Countdown

    Timers that keep time

  • 08

    Stopwatch

    Laps included

  • 09

    Notes

    A quick scratchpad

  • 10

    Counter

    Tap to count

  • 11

    Days left

    Until the day that matters

  • 12

    Water

    Glasses today

  • 13

    Apps

    Launch your favourites

  • 14

    Shortcuts

    Run any Shortcut

  • 15

    Bookmarks

    Open in your browser

  • 16Permission

    Calendar

    Read-only, asks first

  • 17Permission

    Camera mirror

    Only while visible

  • 18

    Tray

    Files and AirDrop

  • 19Opt-in

    Clipboard

    History, off until you turn it on

  • 20macOS 15

    Translate

    On device

04 — Setup

set up,
page by page.

Settings stay out of the panel. Everything lives in Setup, one page per area.

Scroll11 pages

Setup → Layout
01LayoutArrange pages and widgets with a live preview of the panel.
Setup → General
02GeneralDisplay, hover delays, Dock and menu bar icons, haptics, open at login.
Setup → Tutorial
03TutorialA short tour, with a button to every page it mentions.
Setup → Language
04LanguageEnglish, Bahasa Indonesia or 日本語, or follow macOS.
Setup → Keyboard
05KeyboardRecord a shortcut that opens the panel.
Setup → Widgets
06WidgetsSettings for every widget in one place.
Setup → Appearance
07AppearanceIsland size, lyric lines, accent colour and animations.
Setup → Browser connection
08Browser connectionFour steps to connect your Chromium browser.
Setup → Music source
09Music sourceOpt-in connections for Spotify desktop and Apple Music.
Setup → Lyrics
10LyricsSource, timing and on-device translation.
Setup → About
11AboutVersion, privacy note and links.

05 — Privacy

no account. no telemetry. no paywall.

06 — Install

up and runningin three steps.

macOS
14 Sonoma or later. Translate needs 15 Sequoia.
Mac
Apple silicon. A MacBook with a notch is recommended.
Browser
Chrome, Brave, Edge, Vivaldi, Opera, Chromium or Arc.
Sites
YouTube and YouTube Music.
  1. 1

    Get the app

    Download Ririku-0.4.0.zip from Releases, unzip it, and move Ririku.app to your Applications folder.

  2. 2

    Allow it to open

    Ririku is free and not notarized by Apple, so macOS asks first. Go to System Settings → Privacy & Security and click Open Anyway.

  3. 3

    Connect your browser

    In Setup → Browser connection: Register, Show in Finder, then Load unpacked from your browser's extensions page with Developer mode on. Refresh your YouTube tab.

Play a song and hover over the notch.

Questions

Is Ririku really free?

Yes. It is free and open source under the MIT license, with no account, no premium tier and no paywall.

Why does macOS block the first launch?

Notarization needs a paid Apple developer account, so Ririku is signed ad hoc. Click Open Anyway in Privacy & Security once and macOS remembers it.

Does it work with Spotify or Apple Music?

Yes, as opt-in connections in Setup → Music source. They use macOS Automation and need no extension. Real-device validation is still in progress.

What if my lyrics are out of sync?

In Setup → Lyrics, adjust the offset for that song, or search for another lyrics version whose duration matches the player.

My Mac has no notch. Can I still use it?

Ririku uses the main screen on displays without a notch. It works, but that setup is not fully tested yet.

Safari or Firefox?

Not yet. The companion extension is for Chromium browsers; only Chrome is tested.

ready tosing along?

Free, open source, and about a minute to set up.